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Finding the Fourth Proportional to 252,851.37, 348,945.51 and 145,421.49

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Solution

The fourth proportional to 252,851.37, 348,945.51 and 145,421.49 is: 200,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,851.37 : 348,945.51 = 145,421.49 : x
  2. Step 2: Convert to fraction form
    252,851.37/348,945.51 = 145,421.49/x
  3. Step 3: Cross multiply
    252,851.37x = 348,945.51 × 145,421.49
  4. Step 4: Simplify right side
    252,851.37x = 50,744,175,993.01
  5. Step 5: Solve for x
    x = 50,744,175,993.01/252,851.37
  6. Step 6: Final answer
    x = 200,687.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.